Mobil 1 Racing 4T 10W-40 and Mobil 1 V-Twin 20W-50 4-cycle motorcycle oils

  • Maximum shear stability to help resist viscosity shear down in high performance engines and transmissions
  • Exceptional thermal stability to help resist oxidation and high-temperature degradation
  • Outstanding protection against wear of engine and transmission components
  • Enhanced lubrication to help maintain maximum power and acceleration over the life of the engine
  • Optimized wet-clutch performance
  • Excellent low temperature flow characteristics to help minimize engine wear during start-up


Mobil 1 Motorcycle Oils are full synthetic, high-performance engine oils formulated specifically to meet the demanding needs of motorcycle engines. Mobil 1 Racing 4T 10W-40 is designed primarily for on-road, high-performance, 4-cycle sport bikes, however, it may be used in other types of on and off-road 4-cycle motorcycles especially where a 10W-40 viscosity grade is specified. Mobil 1 V-Twin 20W-50 is formulated to help offer outstanding protection in 4-cycle, V-Twin type engines, particularly those which are air cooled and tend to run hotter than other types of engines.

Mobil 1 Racing 4T 10W-40 and Mobil 1 V-Twin 20W-50 are recommended for 4-cycle, motorcycles which specify the use of a 10W-40 or a 20W-50 engine oil, respectively. These products will help provide excellent performance in motorcycle engines that are designed with a common engine/transmission lubrication system or where the engine lubrication system is separate from the transmission system. In the case of the latter, follow the manufacturer's recommendation for the type of fluid to be used in the transmission. Mobil 1 Racing 4T 10W-40 and Mobil 1 V-Twin 20W-50 engine oils are designed to help provide the proper frictional characteristics necessary for wet-clutch common engine/transmission systems. They have been fully tested, both on laboratory dynamometers and in the field, to help provide optimum horsepower and acceleration.


Mobil 1 Motorcycle Oils meet or exceed the requirements of: Racing 4T V-Twin
JASO MA 2011 X  
JASO MA2 2011  


According to ExxonMobil, product(s) is of the following quality level:    

Typical Properties

Mobil 1 Motorcycle Oils Racing 4T V-Twin
Engine/Application Type 4-Cycle 4-Cycle
SAE Grade 10W-40 20W-50
Service Classification API SH, JASO MA/MA2 API SJ, SH, CF
Density, g/ml @ 15.6°C (ASTM D4052) 0.86 0.87
Flash Point, °C (ASTM D93), 212 214
Pour Point,°C (ASTM D97) -45 -42
Kinematic Viscosity, cSt @ 40°C (ASTM D445) 82.0 172.3
Kinematic Viscosity, cSt @ 100°C (ASTM D445) 13.1 20.8
Viscosity Index 161 142
Cold Cranking, cP (ASTM D5293) 4,640 @ -25°C 7,500 @ -15°C
Pumping, cP (ASTM D4684) 11,700 @ -30°C 14,000 @ -20°C


5.0 / 5.0
1 Review
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1 Star
Mobil one V Twin motorcycle oil
Best oil I have tried for my high performance 127ci Harley. I have been using it for a number of years now. I would not use anything else
January 3, 2019
over 2 years ago


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Browse 2 questions Browse 2 questions and 5 answers
Why did you choose this?
The Lubricant Store Store
Cause I believe Mobil 1 v-twin is the best oil for my Harley Davidson and I found here at a good price
Chad B on Apr 3, 2019
Cause I believe Mobil 1 v-twin is the best oil for my Harley Davidson and I found here at a good price
Chad B on Apr 3, 2019
Can this oil be used in automotive engines that run hot like Land Rover 4.0 V8?
A shopper on Jun 18, 2018
BEST ANSWER: No, this is not the primary recommendation that Mobil would suggest using because it doesn't meet the specs. and there is no Land Rover spec with Mobil for this fluid. The 0W30 is what they would suggest, however, you should consult your dealer and or the owners manual for your vehicle.